Mallophora fautrix
A bee-killer fly perches in an urban garden. Austin, Texas, USA.
Megaphorus
Robber fly on a perch. Chiricahua Mountains, Arizona, USA
Robber flies are visual predators, and their enormous eyes help them to capture prey in the air. Arizona.
Holcocephala
A robber fly sits on its perch in a South American cloud forest. These aerial predators have an excellent sense of vision. Mindo, Pichincha, Ecuador.
A small robber fly (Asilidae) perches in an Illinois prairie with freshly-caught aphid prey. Urbana, Illinois, USA
Hadrokolos texanus
A hover fly on its perch. Austin, Texas, USA.
Laphria
Laphria robber flies are convincing mimics of bumble bees. Unlike bees, robber flies are predators. This one has killed a honey bee. Urbana, Illinois, USA
Asilidae
A robber fly sits on its perch in a tropical cloud forest. Mindo, Pichincha, Ecuador.
Ozodiceromyia sp.
A stiletto fly stakes out a patch of meadow. Austin, Texas, USA.
Villa lateralis
Bee fly. Austin, Texas, USA.
Xenox trigrinus
Parasitic Xenox trigrinus bee flies (Bombyliidae) dry their wings after emerging from the carpenter bee burrow where their mother laid eggs. Urbana, Illinois, USA
Geron
Austin, Texas, USA.
Hemipenthes celeris
The family Bombyliidae can be recognized, in many species, by the distinctive wavy veins near the wingtips. Austin, Texas, USA.
